<!DOCTYPE html>
<html lang="zh-cn">
<head>
  <meta charset="UTF-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Document</title>
  <style>
    * {
      padding: 0;
      margin: 0;
    }
    div {
      margin: 200px auto;
      width: 89px;
      height: 54px;
      background-image: url(../html+css/picture/huochai.webp);
      animation: key 300ms step-end infinite;
    }
    @keyframes key {
      0% {
        background-position: left top;
      }
      17% {
        background-position: -89px top;
      }
      34% {
        background-position: -178px top;
      }
      51% {
        background-position: -267px top;
      }
      68% {
        background-position: -356px top;
      }
      85% {
        background-position: -445px top;
      }
      100% {
        background-position: -533px top;
      }
    }
  </style>
</head>
<body>
  <div></div>
</body>
</html>